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https://issues.apache.org/jira/browse/BEAM-621?focusedWorklogId=596402&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-596402
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ASF GitHub Bot logged work on BEAM-621:
---------------------------------------
Author: ASF GitHub Bot
Created on: 13/May/21 23:18
Start Date: 13/May/21 23:18
Worklog Time Spent: 10m
Work Description: aaltay commented on pull request #14273:
URL: https://github.com/apache/beam/pull/14273#issuecomment-840888968
@Amar3tto - if you are blocked on your question, feel free to ask it on dev@
list to bring it to the attention of more people.
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Issue Time Tracking
-------------------
Worklog Id: (was: 596402)
Time Spent: 1.5h (was: 1h 20m)
> Add MapValues and MapKeys functions
> -----------------------------------
>
> Key: BEAM-621
> URL: https://issues.apache.org/jira/browse/BEAM-621
> Project: Beam
> Issue Type: New Feature
> Components: sdk-java-core, sdk-py-core
> Reporter: Jean-Baptiste Onofré
> Assignee: Vitaly Terentyev
> Priority: P3
> Labels: Clarified, newbie, starter
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> Currently, we have the {{MapElements}} {{PTransform}} that "convert" a
> {{PCollection}} of {{KV}} to another {{PCollection}} (for instance
> {{String}}).
> A very classic mapping function is to just have the keys or values of {{KV}}.
> To do it currently, we can use {{MapElements}} or a generic {{ParDo}} (with
> {{DoFn}}).
> It would be helpful and reduce the user code to have {{MapValues}} and
> {{MapKeys}}. It would take a {{PCollection}} of {{KV}}: {{MapKeys}} will map
> the input {{PCollection}} to a {{PCollection}} of {{K}} and {{MapValues}} to
> a {{PCollection}} of {{V}}.
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